Means for securing a metallic bridge to nonmetallic lens rims



J. FIELDING July 25, 1933.

MEANS FOR SECURING A METALLIC BRIDGE TO NONMETALLIC LE'NS'RIMS Filed April 8, 1931 INVENTOR. Jb/l Zk/aia'qy ATTORNEYS.

'' PatentedJuly e to improve the appearanceof;the"'connec-f;

' JosEPH' wHITAKER, OF "APPO'NAUG', HoDE 'IsLANn.

' ronasnconiim'n mmenmoirom mnmc Il Ns Rnvrs' i 1 1 Application filedl'prjil 8,1931. serial N,o. 528,613.?

5 i This invention: relates 'to i an ophthalmic mounting and has for itsiobject to connect a; pair "of. non-metallic lens-rims tog'ether by a resilient bridge of hardened metal/stock;

iT Another' object of theinventionfisthe use ,of a high qualityspring "for attaching lens M v and mor'esatisfactoryfito the user; and the A further object offthe invention-is the" rims-together.

provision of a construction"which may" be made moreinexpensivelythan other con; structions which: utilizejpomo s of -the p p -f'lV1th reference-to the drawing, lOdesigresilienti bridge member for attaching purposes, and to providea stronger; and more secure means for holdingthe partsi together;

' A stillfurther object oftheeinvention is tion between the parts that "the same: may

have a "more ornamental effect when worn.

lVith these and other objects in I View; the

invention consists of 'certain novel "features ofconstruction, as willqbe more fully de'- scribed, and particularly pointed out in the In the accompanying drawing"; i 1 Fig. l is a face View 'of the lensriins connected togetherv bythe bridge; Fig, '2 .isatop edge vieyv thereof;

Fig.3 is a perspective View of the bridge alone;

Fig. 4: is a perspectiveview of the connecting member alone;

Fig. 5 is a section on line 5'15/ of Figure';

Fig. 6 is a section on, line 6 l6 of Figure5 Fig. 7 is a section on line; 7 ofFigure 1. It hasbeen usual to vconnect non-metallic lens" rims together wherelelasticity is @re-:

quired in the bridge piece by a piece ofresil ient stock which is sufiiciently softto'permitf bending, such soft stock v however;easily .ac-

quires" axset and is not that which is der; sired for best elasticor resilient action; 'it,

however, is impractical touseqa high grade spring. stock because 90f the breaking and weakening thereof if; folded about the rims for securing the spring thereto, and in order that the highestgrade hard spring stock may be used and also amore ductile connec-i tion, I have provided means bylwhich these parts may be formed separately anjdpcona nected together without. then-use pi-igheat or 1 i JQiINiIEiQiJIN -QF nonmninovfnnncn,iItHonE ISLAND, Assienon, or ONE-HALE. T0

solderii'wliich wil li anneal the" spring stock "I havelfound that inthiswaythe parts may ,be n'iore'inexpensively formed and assembled together, thereby'making a saving'through- ,out'zin' manufacture, and further providing a structure which Willbe of betteriappearance following is a detailed""description of the present embodiment of' this invention, illustrating the preferred means by Which-theseadvantageousresults maybe accomplished.

nates the lenses with a non ni'etallic rim 11 encircling the same formed of'celluloid,

.14 on opposite sides flanges 17, with the top Wall 16 raised-to e form arpocket 18'whichfisindented as at 19 to provide projections 20 on theinner surface, of the pocket '18. {The pocket re- 751 ceives thejend of the bridge 12 with the projections 20 extending into the recesses 18'an'd14, and the-end 21 of the bridge abutting'thejend 22,0fthe pocket to assist in holding the same securely thereinJ i e The P 8.01 ardepth.sub t ti l y the thicknessof the bridge 12, and in attaching he same tortherim, the bridge vis placed in the pocket, and the connectingimember :15 laidf'upon" the rim at the'desired location, after which the flanges l7 are. folded,

inposition, 1

I1r-thismanner; the hardened spring stock is securedito the non-metallic rims ithout the use of solder, .and the. sam e may bep 7 formed of the highestj grade spring [stock i I desiredjivithout fear of jcr'acking or breaking the same by folding for securing the same: to "therimgfF urther, the appearance ofa construction so' formedis, an improve- ,ment'oyer prior formations, and the pocket and shape thereof assist, to ornamentfthe -1enS rims, a bridge memgber lextending bea:

tween said rimsand-1n engagementther -A w th, and separate clamping members folded H connecting 7 member which bridge to the frame.

The spring-bridge used is of a degree of hardness andfleniibility toipermit one lens rim tofoldor be moved over the. other for more compact storage of the parts andthns it will be apparent that a set may occur in the bridge if it were soldered or heated andtlius annealed at the point ofheattreating, which setting is eliminated in my eonstrnction' by Whiclrperfect elasticity vis ob. spring bridge throughout its taied ofthe length.

Whi1e I have described certain construetion forms which embody the princip l'esof my invention, it is obvious that other ,de-

sired changes n arrangement, maybe made 7 tweensaid runs and in engagement therewith, separate clamping members folded" about the ends ot said brldge'iand beneath the edges ofsald rims to hold the same in assembled relation, and recesses andintegral progections on said membersrespectively interfitting to maintainsaidmembers against. relative movement. I j v if], '3' 2, an ophthaim e mounting; a pairiof attaches f the about the ends of said bridge and beneath the edges of said rims to hold-the same'in assembled relation, said clamping members havingnpsetpockets to receivethe ends of said} bridge member, said; pockets and bridge member endsl being shaped-Tito interfit and prevent relative movement.

3.In-an' ophthalmic mounting,' apa-ir of flensw rims, a, bridge nein-ber "extending; bea tween lsa1dir1n1swand in engagement therewith, separate, clamping .members folded abontthe' ends ofsaid-bridge' and beneath" theedges ofsa d runs to hold the same 111 assembled relation," said clamping members hamng ipoekets with proyecting portions, to

reoei ve the endswof said bridge i niember, and

said bri dge memberhaving; notches in its ends} to receive sa d p 'o ectm 5; portions to hold thei menibersagainst relative move- 7 "nient' 4. In. an

tivelyghard spring metal stock. having one end in engagement with each of said rims", and iclamplng members of relati'vely soft "nietalyf-or embrac ng the ends of said bridge andssaid' rims and holding the-same in en gage'ment; sa d Clamping; members havlng npsetj-poeketsflto receive theends of said bridgeinember said pockets and bridge nember ends being shaped to. interfit in substantially vthe vertical plane of thehbridge member and. prevent "relative movement;

.i JOHN FIELDING.

onhthahnic mounting; a pair of- 'non-metall c;rims,"abridge member of rela- "iio 

